Travel size relationships: When one goes somewhere for a specified length of time and finds somebody to sleep with for exactly that length of time. No more, no less. Normally only the traveler is aware of the actual lifespan of the relationship. These relationships are commonly encountered in military communities.
Hey bro, aren't you supposed to be seeing that hottie you met in Arizona while you were in training?
No way, that was just a travel size relationship! I'm back with my wife in CA now.
A Shackteau is a humble, weather-beaten, structurally questionable shelter located in a spectacular or highly coveted place—Wales, Jackson Hole, Sun Valley, Crested Butte, coastal Maine, the Alps—where the building itself may be worth almost nothing, but the dirt, view, access, and mythology make it absurdly valuable.
In use:
Shackteâu - We thought it was an abandoned shed until the realtor called it a rare alpine Shackteâu with unobstructed views and listed it for $2 million.